PHOTOINITIATED TISSUE FILLER - Visible light-activated polymer cosmetic filler preparations useful in a variety of applications are provided. In some embodiments, the photo-activated polymer composition comprises a conventional polymeric material, such as HA, together with a modified, cross-linkable polymer, such as PEG or PEODA, to permit the formation of crosslinks within the polymer matrix in situ on exposure to a visible light source, such as an IPL device. The preparations provide for a more stabilized composition that is contourable during gelation.

IMIDATED BIOPOLYMER ADHESIVE AND HYDROGEL - Biologically compatible polymers carry an imide and can be used as an adhesive, a hydrogel or both. A second biologically compatible polymer reactive with the imidated polymer can be used therewith to seal openings.

PHOTOINITIATED TISSUE FILLER - Visible light-activated polymer cosmetic filler preparations useful in a variety of applications are provided. In some embodiments, the photo-activated polymer composition comprises a conventional polymeric material, such as HA, together with a modified, cross-linkable polymer, such as PEG or PEODA, to permit the formation of crosslinks within the polymer matrix in situ on exposure to a visible light source, such as an IPL device. The preparations provide for a more stabilized composition that is contourable during gelation.

01-06-2011

20110111034

METHOD AND MATERIAL FOR ENHANCED TISSUE-BIOMATERIAL INTEGRATION - The present invention relates to the covalent binding of a hydrogel to an extracellular matrix (ECM). The integration of the hydrogel with the tissue is superior to that in previous techniques. Moreover, unlike previous techniques, the present invention does not require a photoinitiator. Potential therapeutic applications include tissue repair and delivery of drugs or cells.

Wound Healing Compositions Comprising Biocompatible Cellulose Hydrogel Membranes and Methods of Use Thereof - The present invention provides a wound healing composition comprising a biocompatible hydrogel membrane wherein the hydrogel membrane has one or more of the following properties: high water content, high transparency, high permeability, high biocompatibility, high tensile strength and an optimal thickness. The invention further provides methods of treating a wound in a subject in need thereof, comprising contacting the wound with a biocompatible cellulose hydrogel membrane of the invention.

09-13-2012

20130032059

Cellulose-Based Hydrogels and Methods of Making Thereof - The present invention provides cellulose hydrogels having one or more of the following properties: high water content, high transparency, high permeability, high biocompatibility, high tensile strength and an optimal thickness. The present invention further provides a process for preparing a cellulose hydrogel comprising: (i) contacting cellulose with a solvent to activate the cellulose; (ii) optionally removing the solvent from the activated cellulose; (iii) substantially dissolving the activated cellulose to form a solution; (iv) allowing the solution to gel; and optionally (v) drying the gel and rehydrating the gel. The cellulose hydrogel can have many uses, including uses as contact lenses.

INTRAOPERATIVE AND BLOOD DERIVED ADHESIVES - The invention features the production of an amine-reactive proteoglycan, specifically chondroitin sulfate or hyaluronic acid. This material can be provided in powder (solid) or liquid form and combined with blood derivatives including serum, platelets, platelet rich plasma, bone marrow, or with other tissue products to form hydrogels. The properties (physical and biological) are different for each of these hydrogels and can be further manipulated by controlling the conditions under which the hydrogels are formed. Such properties include the biodegradability of the hydrogel, the compressibility, the adhesive strength, the presence of pharmaceutical agents or therapeutic cells, and resiliency.

04-24-2014

20140288022

CROSS-LINKED POLYMER MATRICES, AND METHODS OF MAKING AND USING SAME - Functionalized chondroitin sulfate, cross-linked polymer matrices comprising functionalized chondroitin sulfate, and methods of making and using the same are provided. Such polymer matrices may be used for tissue engineering, reconstructing cartilage, and the like. Kits are also provided for detection of cartilage degrading enzymes.

Cellulose Hydrogel Compositions and Contact Lenses for Corneal Applications - The present invention provides cellulose hydrogels having one or more of the following properties: high water content, high transparency, high oxygen permeability, high biocompatibility, high tensile strength and desirable thermal stability. The present invention further provides a process for preparing a cellulose hydrogel comprising (i) a step of activating cellulose, in which the activating step comprises contacting the cellulose with a solvent to activate the cellulose for a time duration from about 2 hours to about 30 hours; (ii) substantially dissolving the activated cellulose to form a solution; and (iii) gelling the solution to form a gel, in which the gelling step comprises allowing the solution to gel in an environment comprising a relative humidity from about 30% to about 80% at 35° C.